JPH0356784Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a toy firework with a whistle, and more specifically, a toy firework with a whistle that spews out sparks, flames, and smoke, and also makes a whistle when these jets are emitted. It is.

[Conventional technology]

As is well known, one type of toy fireworks is the squirt toy fireworks, also known as ``speech bubbles,'' which emit sparks, flames, and smoke, and enjoy the colors of the fireworks.

Conventionally, the basic structure adopted for squirting toy fireworks is to fill the bottom end of a bottomed paper tube with gunpowder for squirting, seal it with a center stopper with a small hole in the center, and to allow the gunpowder to pass through the small hole in the center stopper. It is equipped with a fuse that leads out of the paper tube.

The toy fireworks with the above structure is used by holding it in the hand or standing it on the ground, and when the gunpowder is ignited through the fuse in this state, sparks, flames, and flames are emitted from the opening of the paper tube. Smoke spews out,
This will please the eyes of the user and those around him.

It is also well known that toy fireworks include musical toy fireworks that enjoy the exploding sound of ``bang'' represented by ``firecrackers,'' and the sharp sound of ``hiyu'' represented by ``ryusei rocket.'' However, conventional musical toy fireworks use gunpowder mixed in such a way that it emits the desired sound (for example, a sharp ``whirr'' sound) when it burns.

As mentioned above, conventional squirt toy fireworks are intended to entertain the eyes exclusively through the ejected sparks, flames, and smoke, and if the enjoyment of sound is added to this, it naturally becomes more interesting to make squirt toy fireworks. Become.

However, in order to add the pleasure of sound to squirting toy fireworks, if you use gunpowder that is blended to emit the desired sound when burning, following the example of musical toy fireworks, this and squirting gunpowder may be used. Since these must be used in combination, the manner in which the gunpowder is used becomes extremely complicated, which poses problems in terms of production costs for toy fireworks. Moreover, since squirt toy fireworks are often held and used by children in their hands, maximum consideration must be given to their safety. There is also a problem in terms of safety.

[Problem that the invention attempts to solve]

In view of the above-mentioned problems, the present inventor conducted research on the technical issue of adding the enjoyment of sound to ejecting toy fireworks without using gunpowder mixed to emit the required sound when burning. He first devised a ``squirting toy fireworks with a whistle'' and filed it on November 26, 1985 as Utility Application No. 182356 (1982) (Publication No. 3-3835).

The invention related to the above-mentioned prior application is as follows: ``The lower end of an external paper tube is filled with gunpowder for ejection, the inner paper tube is placed above the gunpowder, and a certain distance L is left between the inner paper tube and the gunpowder, and the outer paper tube is It is placed and fixed with a certain gap t between it and the inner peripheral wall, and two fire-resistant hard rings are placed inside the inner paper tube.
The shape of the inner paper tube and the outer paper tube is basically a circular cross section, and when forming the gap between the inner and outer paper tubes, a "spacer" is used. It was necessary to intervene.

[Means to solve problems]

This invention simplifies the structure without impairing the function of a squirting toy firework with a whistle.The cross-sectional shapes of the outer paper tube and inner paper tube are a combination of a circular cross section and a polygonal cross section, and both the inner and outer paper tubes are This feature is characterized in that the spacer as a gap-forming piece is omitted by directly adhesively fixing.

That is, the gist of the present invention is that the lower end of an external paper tube 1 having a polygonal or circular cross section is filled with explosives 2 for ejection, and the external paper tube 1 is placed in multiple locations at a distance L by a certain distance above the explosives. In the case of square, circular inner paper tube 8
In addition, when the outer paper tube is circular, a polygonal inner paper tube 8 is fixed to a predetermined position between the inner and outer walls of both paper tubes by directly adhesively fixing the outer and inner walls of both the inner and outer paper tubes. A whistle formed by forming a gap t, and in which two fire-resistant perforated plates 10 having the same external shape as the inner periphery of the inner paper tube and having a small hole in the center are disposed adjacent to each other in the inner paper tube 8. It is a toy firework with a spout.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, 1 is an external paper tube with a square cross section, the lower end of which is filled with gunpowder 2 surrounded by a bottom plate 3 and an inner plug 4, and the gunpowder is inserted through a small hole 5 provided in the center of the inner plug. One end of the fuse 6 is inserted into the inside, and the other end is brought out from the side wall hole 7 of the outer paper tube.This configuration is the same as that of conventional squirt toy fireworks with a whistle, except for the shape of the paper tube. It is. Reference numeral 8 denotes an inner paper tube with a perfectly circular cross section, and its lower end is spaced a certain distance L from above the inner plug of the gunpowder, and the inner peripheral wall of the square outer paper tube and the inner wall of this perfectly circular inner paper tube are connected above it. The outer peripheral wall of the paper tube is directly adhesively fixed, and a predetermined gap t is formed between the inner and outer walls of both the paper tubes as shown in FIG. The above dimension L is about 1 to 2 times the diameter of the internal paper tube 8, and the gap t
is inevitably determined by the combination of paper tubes, and this gap t serves to partially release the ejection pressure of the gunpowder.

Reference numeral 10 denotes a fire-resistant hard ring-shaped perforated plate provided in the middle of the inner paper tube 8. Its outer shape is the same as the inner circumference of the inner paper tube, and a small hole 11 is provided in the center. The two perforated plates are provided close to each other inside the inner paper tube, forming a whistle that makes a beeping sound when air passes through the small hole 11 in the center. The position of this whistle is not particularly limited, but since the sound of the whistle changes depending on its position within the internal paper tube, an appropriate position may be selected empirically in consideration of the gunpowder ejection pressure.

A preferred material for the perforated plate is gypsum, but it may also be made of other metals or asbestos, as long as it does not melt or burn when gunpowder is ejected. Also, regarding the shape of the perforated plate itself that makes up this flute, there are 11 small holes in the center.
The ring may be a simple flat ring having a 30 mm diameter, or it may be a ring with opposing surfaces shaped like concave lenses as shown in the figure, and the latter generally produces a clearer sound.

Note that FIG. 3 is a drawing corresponding to FIG. 2 in a case where the cross section of the outer paper tube 1 is an irregular trapezoid, and the cross section of the inner paper tube 8 is a perfect circle. Figure 4 also shows the external paper tube 1.
5 has a circular cross section and the inner paper tube 8 is triangular. FIG. 5 is also the opposite of FIG. 2, and shows the case where the outer paper tube 1 is perfectly circular and the inner paper tube 8 is square. All of these have dimensions such that the outer circumferential wall of the inner paper tube is in linear contact with the inner circumferential wall of the outer paper tube, and by directly bonding and fixing at this contact part,
A predetermined gap t can necessarily be secured between the corner portion or the square surface and the circular arc.

In addition, when using the internal paper tubes having the shapes shown in FIGS. 3 to 5, the outer shape of the perforated plate body 10 incorporated therein is a perfect circle,
Needless to say, the shape matches the shape of the hole in the inner paper tube, such as a triangle or square.

[Effect]

In the squirting toy fireworks with a whistle according to the present invention, when the fuse 6 is ignited, the squirting gunpowder 2 burns,
Sparks, flames, smoke, etc. are emitted from the small hole 5 in the center of the inner stopper. All of the ejection pressure at this time escapes upward, but some of it escapes to the outside through the gap t between the inner paper tube 8 and the outer paper tube 1, and another portion ejects to the outside through the center of the inner paper tube 8. I can understand. Of these, internal paper tube 8
The fire smoke passing through the inside passes through the small hole 11 in the center of the two perforated plates 10, and then blows out from the tip of the paper tube to the outside, where it is viewed as fireworks, and at the same time passes through the two perforated plates. "Beep" due to the jet pressure at the time
A flute sounds, and the sound of the flute is enjoyed along with the fireworks. Incidentally, the smoke passing through the gap t is also blown out from the tip of the paper tube to the outside and is viewed as fireworks.

Before completing this invention, the inventor conducted prototype experiments on toy fireworks with various structures, but the most important technical aspect of this invention was the internal paper tube installed in the upper half. The lower end of the gunpowder must be spaced a certain distance from the upper part of the inner plug of the gunpowder, and the inner paper tube must be provided with a predetermined gap between it and the inner wall of the outer paper tube. In other words, if a certain amount of space is not provided between the upper part of the gunpowder and the lower end of the inner paper tube, the entire pressure caused by the ejection of fireworks will pass through the small hole in the center of the perforated plate and eject to the outside. It turned out that it was too high to produce the effect of a whistle. To solve this problem, a certain space is provided above the gunpowder, and the pressure ejected from this space to the top is divided into the inside and outside of the internal paper tube, and by dispersing the ejection pressure, a whistle effect can be obtained. This is what I did.

[Effect of idea]

Since the present invention has the above-described configuration, the inner and outer paper tubes can be directly bonded without requiring a spacer member unlike the conventional method, and the manufacturing process can be greatly omitted. Since the gap t is also inevitably formed by the combination of the inner and outer paper tubes, an appropriate combination may be selected depending on the firework.

In addition, the structure of the whistle as a means of generating sound is extremely simple and can be manufactured at low cost, and the color effect of fireworks produced by gunpowder and the unique sound effect of the whistle produced by the perforated board can be obtained at the same time, making it an unprecedented pleasure. In addition to providing a sense of security, there are no safety issues, and children can feel safe using the device by holding it in their hands.

[Brief explanation of the drawing]

The drawings show one embodiment of the toy fireworks with a whistle according to the present invention, and FIG. 1 is a vertical side view, and FIG.
The AA cross-sectional view and FIGS. 3 to 5 are cross-sectional views showing different combinations of the inner paper tube and the outer paper tube, respectively. 1...External paper tube, 2...Gunpowder, 3...Bottom plate, 4
... Inner stopper, 5 ... Small hole, 6 ... Fuse wire, 7 ... Side wall hole, 8 ... Internal paper tube, 10 ... Perforated plate body.

Claims (1)

[Claims for Utility Model Registration] (1) The lower end of an external paper tube 1 having a polygonal or circular cross section is filled with gunpowder 2 for ejection, and the outer paper tube is placed at a certain distance L above the gunpowder. If the outer paper tube 1 is polygonal, the inner paper tube 8 is circular, and if the outer paper tube is circular, the inner paper tube 8 is polygonal. By fixing with adhesive, a predetermined gap t is formed between the inner and outer walls of both paper tubes, and a fire-resistant hole is formed in the inner paper tube 8 with the same outer shape as the inner circumference of the inner paper tube and having a small hole in the center. This toy fireworks ejects with a whistle and includes two perforated plate bodies 10 placed close to each other. (2) The squirting toy fireworks with a whistle as set forth in claim 1 of the utility model registration claim, wherein the polygon is a square and the circle is a perfect circle. (3) The squirting toy fireworks with a whistle as set forth in claim 1 of the utility model registration claim, wherein the polygon is a triangle and the circle is a perfect circle.